Medical device makers have been trying for years to replicate the success of drug-eluting stents – devices that do a particular job while at the same time, delivering a therapeutic drug. Here’s a new one that demonstrates the Task Unification pattern. Task Unification is defined as: assigning an additional task to an existing resource. That resource should be in the immediate vicinity of the problem, or what we call The Closed World. In essence, it’s taking something that is already around you and giving it an additional job.
From UPI:

After 50 years of trying, researchers may have found an effective way to use contact lenses to deliver drugs for conditions treated with eye drops.
Glaucoma patients may soon be able to treat the condition using a lens that slowly releases medication to the eye, with some tests with monkeys suggesting the treatment method could be more effective than the standard eye drops, researchers at Harvard Medical School report in a new study.
The leading cause of irreversible blindness, glaucoma has no cure but doctors attempt to slow its development by prescribing drops for patients. The drops, however, often cause stinging and burning, and may be difficult for some patients to use, if they try to use them at all.
“If we can address the problem of compliance, we may help patients adhere to the therapy necessary to maintain vision in diseases like glaucoma, saving millions from preventable blindness,” Dr. Joseph Ciolino, an ophthalmologist at Massachusetts Eye and Ear and an assistant professor at Harvard, said in a press release. “This study also raises the possibility that we may have an option for glaucoma that’s more effective than what we have today.”
Using a novel design, researchers created a contact lens with a thin film of drug-encapsulated polymers around its edges. The polymer film slows release of the drug — previous attempts at a drug-eluting lens released medications far too fast — while remaining on the side of the lens so its center remains clear for vision.

To get the most out of the Task Unification technique, you follow five basic steps:

1. List all of the components, both internal and external, that are part of the Closed World of the product, service, or process.
2. Select a component from the list. Assign it an additional task, using one of three methods:

  • Choose an external component and use it to perform a task that the product accomplishes already
  • Choose an internal component and make it do something new or extra
  • Choose an internal component and make it perform the function of an external component, effectively “stealing” the external component’s function

3. Visualize the new (or changed) products or services.
4. What are the potential benefits, markets, and values? Who would want this, and why would they find it valuable? If you are trying to solve a specific problem, how can it help address that particular challenge?
5. If you decide the new product or service is valuable, then ask: Is it feasible? Can you actually create these new products? Perform these new services? Why or why not? Is there any way to refine or adapt the idea to make it viable?